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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1097136	Senorx Inc	SENO	Surgical & Medical Instruments & Apparatus (3841)	330787406

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1252525	Kurt Wheeler	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116		No	No	Yes	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2010-04-22	31,811	$10.06	2,210,568	No	4	S	Indirect	See footnote
Common Stock	Disposition	2010-04-23	1,900	$10.07	2,208,668	No	4	S	Indirect	See footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote

Footnotes

The shares were sold as follows: 21,447 by MPM BioVentures II-QP, L.P. ("BV II QP"), 2,367 by MPM BioVentures II, L.P. ("BV II"), 445 by MPM Asset Management Investors 2001 LLC ("AM 2001") and 7,552 by MPM BioVentures GmbH & Co. Parallel-Beteiligungs KG ("BV KG"). MPM Asset Management II, L.P. ("AM II GP") and MPM Asset Management II LLC ("AM II LLC") are the direct and indirect general partners of BV II QP, BV II and BV KG. The Reporting Person is a member of AM II LLC and AM 2001.
The shares are held as follows: 1,490,367 by BV II QP, 164,466 by BV II, 30,947 by AM 2001 and 524,788 by BV KG. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein.
The shares were sold as follows: 1,281 by BV II QP, 141 by BV II, 27 by AM 2001 and 451 by BV KG.
The shares are held as follows: 1,489,086 by BV II QP, 164,325 by BV II, 30,920 by AM 2001 and 524,337 by BV KG. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein.